If you're familiar with the more fiery, bottle aged styles (vintage, crusted, late bottled vintage), I strongly urge you to try tawnies as well. These are blends with an average age of 10, 20, 30 or even occasionally 40 year old wines. Then step up to colheita – the single vintage version.

What could be better at the height of summer than something crisp, white and ever so slightly frizzante? And better still, typically at only 10-11.5% alcohol, you can down it by the gallon. That's about as far as Vinho Verde's image stretches for many of its fans. But there is more.